Steam-boiler-cleaning tool



June 5; 1928. 1,672,757

s. GABRIELSE STEAM BOILER CLEANING TOOL Filed May 28. 1927 MGM. I F1621. L

N VEN TOR JnsrA/vss dqamz ss ATTORNEY Patented June 5, 1928.

1 UNITED STATES 'STEFANES eannrnnsn, or nor'rnnnam,

NETHERLANDS, ASSI EGNOR TO H ANDELS- VENNQOTSCHAP FIRMA GABRIELSE & (30., OLE BUTTER/DAM, NETHERLANDS.

srnam-nornnn-cnnanme moor.

Application filed May 28, 1927, Serial No. 195,030, and in the Netherlands July 12, 1926.

This invention refers to a steam boiler cleaning tool particularly intended for scraping the parts of the boiler which are relatively near to one another and parallel 5 to one another.

formed on smoke boxes placed near-to one another. Such walls are connected together by stay bolts. According to this invention, thescraper consists of a fork, one tine or prongof which is provided with a roller,

, whilst the other prong is directed outwards and cut to a point like a knife edge. This tool is provided with a haft which can be lengthened or shortened as desired. Between 1 the two prongs of the fork an adjusting screw is provided with the aid of which the prongs can be screwed together.

When the scraper is adjusted two walls under treatment the prongs are bent together by means of a screw, preferably a thumb screw, until the tool can be used between the walls under treatment. The screw is then released so that the prongs are applied on the wall like springs. Upon the scraper being moved to and frothe point of one prong cleans the Wall, whilst the other prong slides or rolls on the wall opposite.' The scraper is then pulled up and down by hand. According to this invention an all the parts of the parallel walls can be easily reached and cleaned with the scraper. Leakage in the parts where the stay bolts are arranged is thereby prevented and the walls can be entirely and thoroughly cleaned, so that the consumption of fuel in working the boiler is reduced. A further advantage is thatthe boiler can be cleaned in a much shorter time than was formerly the case and the cleaning can also be more thoroughly 40 executed. a

The accompanying drawing illustrates an example of execution of the tool, according to this invention.

Fig. 1 is a side view-of the tool, and Fig. 2 is aside view the right.

Such parts or walls are between the of Fig. 1 seen from 1 According to this invention the scraper consists essentially oftwo resilient prongs 1 and 2, of which prong 1 is provided with a laterally directed edge .3, whilst prong Qis provided witha roller 4. The two prongs are screwed fast in the holder 5, whilst a spring 6 is provided between the two prongs. 'l-loles are bored through the two prongs, whereby a screw 7 is adjusted by means of a thumb screw 8. A stem is connected with a holder 5 which can be extended or shortened in a simple way by approaching or removing the extension parts 9 which can be connected together by means of the sleeves 10.

In order'to introduce the scraper between the walls under treatment, the thumb screw '8 is screw fd on until the point 3 and the roller 4 can be introduced between the two walls,as shown inFig. 1. Thereupon the thumb screw 8 is released, so that the prongs are resiliently pressed against the wall-like springs. It the prongs themselves have sat ficient resilient power the spring is superfluous. It is important that the stem can be extended or shortened in order that the tool may be used in the narrow space available and all parts of the wallsunder treatment can be reached.

W'hatI claim is A stean'rboler cleaning tool, comprising a holder having a recessed lower end, two resilient members having their inner ends secured in said recess, the outer ends of the members flaring outwardly, one of the members having its end formed into a knife edge and the other ha 'ing a roller mounted therein, a spring hav ng one end secured in the, recess between t ye said members and forc ing them apart, 21d means for drawing the tion of the .sprin'".

In testimony w ereof, I afiix my signature.

sTEyANEs GABRIELSE.

'85 members toward each other against the ao- 

